package com.learn.designPatterns.behavioral.memento;

/**
 * @classname:
 * @Description: memento interface to originator
 *               this interface allows the originator restore its state
 * @author: yfpu
 * @Date: 2018-10-20 18:00
 */
public interface PreviousCalculatorToOriginator {

    int getFirstNum();
    int getsecondNum();

}
